Button-sewing attachment for sewing-machines.



V. S. TODARO. BUTTON SEWING ATTACHMENT POR SEWING MAGHINES.

APPLICATION FILED MAY 14, 1910.

Patented Nov. 21, 1911.

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VINCENT S. TODRO, OF NEW YORK, N. Y.

BUTTON-SEWING ATTACHMENT FOR SEWING-MACHINES.

l'o alt whom 'it may concern:

Be it known that 1, VINCENT S. Tomino, a subject of the King of Italy, residing at N ew York, in the county of New York and State of New York, have invented certain new and useful Improvements in Button- Sewing Attachments for Sewing-Machines, of which the following is a specication, reference being had therein to the accompanying drawing.

My invention relates especially to attachments to be removably applied to sewing machines, and has for its object the provision of a device of this character for sewing buttons onto garments.

To attain the desired end, my invention consists in certain novel and useful combinations or arrangements of parts and peculiarities of construction and operation, all of which will be hereinafter first fully described, and then pointed out in the claims.

In the drawingl Figure 1 is a plan view of a sewing machine attachment embodying my invention. Fig. 2 is a longitudinal, vertical, sectional view at line o o of Fig. 1. Fig. 3 is a cross-sectional view at line o o of Fig. 2 looking from the right. Fig. 4 is a detail view of the operating mechanism at the upper part of the left of Fig. 2. Fig. 5 is a cross-sectional view at line ce of Fig. 1. Fig. (i is a sectional view of the button-holding arms, showing a button in position between them.

Similar numerals of reference, wherever they occur, indicate corresponding parts in all the figures.

1 is the main plate of the attachment, provided at its lower side with a spring-bar 2 pivoted to a turning key 3 arranged to rest in a depression in the top of the plate.

t are guiding fingers for the bar 2, the ends whereof are arranged to project beneath the plate 5 of a sewing machine for removably holding the attachment thereto.

At one extremity the plate 1 is bent back upon itself in order to provide space for the accommodation of goods when it is desired to sew buttons thereon at some distance from the edge.

6 is a slide way, crossing the upper portion of the plate 1; within the slideway at the center of the plate 1 is movably located a slide 7 bearing upwardly extending standards 8 having a cross head 9, the ends whereof are cut away to cam-surfaces 10.

11 are springs carried by the slide 7 and Speccation of Letters Patent.

Application filed May 14, 1910.

Patented Nov.. 21, 1911.

Serial No. 561,478.

arranged to bear upon the plate 1 to insure the necessary amount of friction to regulate the movement of said slide.

12 are bearings for a shaft 13, screwthreaded at each extremity, and provided with a manipulating button 141-. The screwthreaded extremities of the shaft 13 engage threaded perforations in standards 15 earried by slides 16 mounted in the slideway 6.

17 are standards mounted upon extensions at the sides of the plate 1, and having horizontal arms 18 terminating in downwardly extending fingers 19. Mounted in the standards 17 and fingers 19 are rods 20. @n each of said rods is a sleeve 23 having a slot 22 therein..

24 are arms fixed to hubs 25 on the rods 20, each hub bearing a stud 21 entering the slot 22.

26 are springs which normally force the arms 211 downward at their inner extremities. Secured to the sleeves 23 are fingers 27 arranged to travel upon the cross-head 9.

23 are depending arms carried by each sleeve 23, the lower ends of which are arranged to contact with lugs 29 carried by each slide 16.

The slide 7 carries cross slideways 30 wherein is a slide 31 provided with a hinge 32 frein which extend button-holding arms 33, U-shaped in cross-section, and having teeth 311 upon their under faces.

35 is a rod passing through the arms 33, and 3G are springs which normally force said arms toward each other.

37 is a spring which bears upon the slide ways 30, pressing the arms 33 down upon the material to which buttons are being applied.

At the rear of the slide 31 is an arm 38 having an upwardly projecting finger 39 which extends between two stop-arms 410 pivoted at 41 and provided with a regulating screw 42 manipulated by a button L13.

fn operation the device is first placed in position on the plate of a sewing machine, so that the screw upon the needle-bar will come in contact with the arms 241, and a button (441, Fig. 6) is placed between the arms 33, the throw of the button holder being regulated in accordance with the distance between the holes in the button by means of the screw 13 by which the slides 16 are adjusted, and the screw i12 which regulates the lengt-h of longitudinal movement of the arms 33. The edge of the garment to which the button is to be applied is passed beneath the arms 33, the teeth 34 entering the fabric so it will be moved by said arms in unison with the button. Then the sewing machine starts, the screw upon the needle bar will press the arm 24 downward as the first passage ot the needle through the hole in the button, as indicated at the right of Fig. l of the drawing, without moving the slide 16, but with the upward movement of the needle bar, the screw will raise the arm 24, causing the finger 28 to strike the lug 29, as at the left of said figure, and continued upward movement of the screw will carry the slide 16 to the right the distance of the width between the holes in the button, this movement continuing unt-il the requisite number of stitches have been made, when the operator moves the slide 3l to the right (Fig. l) by hand, bringing the other pair of holes in the button in proper position for sewing. The arms 24; are permitted to fall to the position shown ,at the right of Fig. 3 by the finger 27 passing down the cam surface 10 of the cross-head.

Having now fully described my invention, what I claim as new therein, and desire to secure by Letters Patent, is:

l. In a device of the character herein specified, a button holder consisting of a` pair of arms U shaped in cross-section, a slide upon which said arms are hinged, a hinge and an adjustable stop for regulating the longitudinal movement of the said arms.

2. In a device of the character herein specified, a pair of arms movably mounted in bearings upon a movable slide and adapted to be actuated by a needle holding screw upon a needle bar, a slide atright angles thereto mounted upon a slide located between the supports for the pair of arms, and adjustable means for regulating the movement or" the last mentioned slide and means for holding a button, substantially as shown and described.

3. In a device of the character herein speciiied, the combination with a pair of oppositely disposed bars mounted upon supports and adapted to be oscillated by the needle holding screw of a needle bar of a sewing machine, of a button holder located between the supports for said bars and adapted to be reciprocated thereby.

t. In a device of the character herein specified, a plate having a slide-way, a central slide provided with standards bearing a cross-head, cam-shaped at each extremity, slides at each side of the first mentioned central slide provided with standards and bearing lugs, adjustable means for connecting the several standards together, and means for moving the three slides in unison, substantially as shown and described.

In testimony whereof I hereto aiX my signature in presence of two witnesses.

VINCENT S. TODARO.

Vitnesses:

F. A. CHICKERING, A. M. PIERCE.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, I). C. 

